Defence Data Fabric: Breaking Down the Classification Barriers That Keep Defence Data Locked in Silos

Overview

Defence operates across multiple security classifications — OFFICIAL, SECRET and TOP SECRET — each with its own networks, systems and data stores. This classification architecture exists for good reason: it protects sensitive information from unauthorised access. But it also creates one of the most significant barriers to effective data exploitation in Defence. An analyst working at SECRET cannot see data held at TOP SECRET. A logistics system at OFFICIAL cannot access intelligence data at SECRET. A commander making a time-critical decision cannot pull together information from across classification boundaries without manual processes that take hours or days. The Defence Data Fabric is designed to solve this problem.

The Defence Data Fabric, also known as the Defence Data Analytics Platform (DDAP), enables secure data sharing across classification boundaries and organisational silos. It provides governed access to authorised users regardless of where the data is physically held. The Data Fabric approach virtualises data access without requiring physical data movement — data stays where it is, but authorised users can discover, access and analyse it through a single governed platform. Security controls are maintained throughout, ensuring that classification rules are enforced even as data becomes more accessible.

The programme is in development, with phased capability delivery building on existing platforms. The cross-domain elements require extensive security accreditation — enabling controlled data flow between classification domains is among the most technically and procedurally demanding challenges in Defence IT. The Data Fabric is part of the Defence Digital Backbone infrastructure and integrates with cloud platforms and legacy systems to enable multi-domain data exploitation.

Strategic Purpose and Objectives

Controlled Access Across Classification Boundaries

Classification barriers prevent data sharing that is essential for Multi-Domain Integration. The Data Fabric enables controlled cross-domain access supporting operational decision-making. Key requirements include cross-classification data access, granular access controls, analytics platform integration, AI and machine learning data preparation, and audit and compliance capabilities. This represents a transformational capability for Defence data exploitation, enabling scenarios that were previously impossible due to classification barriers.

The operational significance is profound. Consider a targeting decision that requires intelligence data at TOP SECRET, geospatial information at SECRET and logistics data at OFFICIAL. Today, integrating this information requires manual processes, multiple terminals and human intermediaries who bridge the classification gaps. The Data Fabric enables authorised users to access the data they need across these boundaries through a single governed platform, reducing decision timelines from hours to minutes.

The Data Fabric also supports the Defence AI Strategy. Machine learning models are only as good as the data they are trained on, and the most valuable training data often spans classification boundaries. A threat detection algorithm that can only access data at a single classification level is inherently less capable than one trained on data from across the classification spectrum. The Data Fabric enables this cross-domain data access for AI workloads, unlocking the full potential of Defence’s data holdings for machine learning.

Budget and Financial Structure

Programme Value

The Data Fabric is developed as part of Defence Digital infrastructure investments. Significant investment is required for cross-domain capability, reflecting the technical complexity and security accreditation demands of enabling controlled data flow between classification domains. The programme is integrated with broader cloud and data platform spending across Defence Digital.

Budget Division and Holder

Defence Digital manages technology delivery. Security authorities manage accreditation. User commands provide requirements. The CIO and Defence Digital hold budget authority, coordinated with security and intelligence authorities who must approve cross-domain data flows.

Procurement and Acquisition

Acquisition Pipeline

The Data Fabric is in development with phased capability delivery building on existing platforms. Cross-domain elements require extensive security accreditation, which drives the delivery timeline. The programme is integrated with the broader Defence Digital Backbone.

Tender Information

Technology partnerships are in place with major cloud and data platform providers, with competitive elements for specific capabilities. Contracts are managed through MOD commercial frameworks and the Defence Sourcing Portal.

Why It Matters

The Defence Data Fabric matters because classification barriers are the single greatest obstacle to data exploitation in Defence. The MOD holds vast quantities of data that could inform better decisions, train more capable AI systems and enable faster operational responses — but much of that data is locked behind classification boundaries that prevent it from being combined, analysed and exploited. The Data Fabric does not remove those classification boundaries, nor should it. Instead, it enables controlled, governed, auditable access across them, so that authorised users can access the data they need without compromising the security that the classification system exists to provide.

The programme’s transformational potential is difficult to overstate. Multi-Domain Integration — the operational concept that underpins the UK’s approach to modern warfare — depends on the ability to share data across domains, services and classification levels at machine speed. The Digital Targeting Web, which aims to connect sensors to effectors through real-time data flows, cannot function if the data is trapped behind classification barriers. The Data Fabric is the enabling technology that makes these concepts operationally viable.

For industry, the Defence Data Fabric creates opportunity in cross-domain solutions, data virtualisation, security accreditation, access control technology, analytics platforms, AI infrastructure, data governance tools and system integration. The programme’s security requirements mean that companies must hold appropriate clearances and demonstrate expertise in handling classified information. However, for those that can meet these requirements, the Data Fabric represents one of the most technically challenging and commercially valuable programmes in Defence digital transformation. Companies with expertise in cross-domain data sharing, zero-trust architecture and classified computing environments are particularly well positioned.

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